Acetylcrosslinkedpolystyrene(EPS)andcrosslinkedbromoacetylpolystyrene(BEPS)beadsweresynthesizedbyFridel-Craftsacetylationofpolystyrene(PS)andbrominationofEPSrespectively.FTIR,XPS,andTG-TDGwereemployedtocharacterizetheirstructures.TheresultsrevealedtherearetwotypesofbromineintheBEPSmolecule.Oneisinthemainchainofpolystyreneandtheotherisintheacetyl.TheresultsofTG-DTGshowedthattheratesoflossweightofPS,EPS,andBEPSwere92.7%,92.2%,and81.3%amongthe300℃～500℃;7.3%,7.8%,and18.7%in594℃,660℃,and584.8℃,respectively.
